1999 GMC Sierra Repair Question
Topics covered: Engine, Oil pressure, Oil pump.
Mileage: 147,000 miles.
Mileage: 147,000 miles.
Asked on November 1, 2012
GMC Sierra Engine Problem
Installed New Oil Pump and dash light say "Check Engine Oil Pressure". Then installed oil pressure sending unit and the problem continue with the light. There is a small knock in the engine and do not want to continuing starting engine. Can you help.
Answer
Replied on November 1, 2012
most likely a bad bearing, either main or rod from bad pressure.
have the pressure checked manually to verify.
Roy